Head mounted display device



FIG. 1 is a perspective view of a head mounted display device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a side view thereof, showing the article in an alternate position of use; and,

FIG. 9 is an alternate view of FIG. 1 showing a transparent portion of the article depicted in parallel diagonal lines.

The broken lines show unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a head mounted display device, as shown and described. 